Finding the Fourth Proportional to 85,437,253.41, 117,900,642.09 and 47,759,415.12
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Solution
The fourth proportional to 85,437,253.41, 117,900,642.09 and 47,759,415.12 is: 65,906,445.77
Step by Step Solution
- Step 1: Write the proportion equation
85,437,253.41 : 117,900,642.09 = 47,759,415.12 : x - Step 2: Convert to fraction form
85,437,253.41/117,900,642.09 = 47,759,415.12/x - Step 3: Cross multiply
85,437,253.41x = 117,900,642.09 × 47,759,415.12 - Step 4: Simplify right side
85,437,253.41x = 5,630,865,708,490,854 - Step 5: Solve for x
x = 5,630,865,708,490,854/85,437,253.41 - Step 6: Final answer
x = 65,906,445.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.